<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 父组件模板-->
    <div id="app">
        <cpn v-show="isShow"></cpn>
      
    </div>  
 <template id="cpn">
    <div>
        <h2>我是子组件</h2>
        <h2>hahha </h2>
    </div>
 </template>
    <script src="../js/vue.js"></script>
    <script>
          //父组件 ------ 双向绑定案例
          const app=new Vue({
            el:'#app',
            data:{
                message:"你好",
                isShow: true
            },
            components:{
                    //组件名称
                    cpn:{
                        template:"#cpn"
                    },
                    data(){
                        return {
                            isShow: false
                        }
                    }
                }
        })
    </script>
</body>
</html>